CN201820086U - Powder output knife and carbon powder box - Google Patents
Powder output knife and carbon powder box Download PDFInfo
- Publication number
- CN201820086U CN201820086U CN2010205712245U CN201020571224U CN201820086U CN 201820086 U CN201820086 U CN 201820086U CN 2010205712245 U CN2010205712245 U CN 2010205712245U CN 201020571224 U CN201020571224 U CN 201020571224U CN 201820086 U CN201820086 U CN 201820086U
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- blade
- knife
- powder
- knife rest
- powder delivery
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Abstract
The utility model provides a powder output knife and a carbon powder box. The powder output knife comprises a knife holder and a knife blade, wherein, one end of the knife blade is fixed on the knife holder; two raised strips parallel to each other are arranged at an interval in the transverse direction of the knife blade on the surface of one end of the knife blade, which is far away from the knife holder; and surfaces of the raised strips adopt arc surfaces. Correspondingly, the carbon powder box comprises the powder output knife, a box body comprising a carbon powder cavity, and a development roller rotationally fixed on the box body; the knife holder is fixed on the box body; and the surface of the end of the knife blade, which is far away from the knife holder, is elastically propped against the outer edge of the development roller. By adopting the structure, the powder output knife can be respectively and elastically in contact with the outer surface of the development roller on two contact surfaces, so that the powder control effect is better, and the thickness of a carbon powder layer on the surface of the development roller is more uniform, thereby obtaining high quality development.
Description
Technical field
The utility model relates to a kind of powder delivery cutter and the cartridge of this powder delivery cutter is installed, especially a kind of cartridge that is used for the powder delivery cutter of electronic imaging device and this powder delivery cutter is installed.
Background technology
As everyone knows, the imaging forming device such as the laser printer of electro photography are a kind of electrofax principles of utilizing, and through comprising charging, exposure, development, transfer printing, fixing at least, form the equipment that forms image on medium such as the paper at image.In charging process,, utilize and the surface of light activated element such as photosensitive drums is filled with predetermined electric charge uniformly as the corona discharge mode by charging device.In exposure, optionally exposure is carried out on the light activated element surface of filling even predetermined charge with.Because the light sensitive characteristic of light activated element will be grounded cancellation by the electric charge of exposure region, like this, the light activated element surface after exposure has formed the electrostatic latent image that distribution characterized by electric charge that forms image corresponding to institute's desire.In developing process, the developer that is used to form visual image, the electrostatic latent image district on the surface of light activated element is delivered in the effect of the acting force of cooperation such as electric field force by developing apparatus, and it is visual to make that electrostatic latent image obtains.
Usually, developing apparatus such as cartridge are removably installed in the imaging forming device, its inside accommodates required developing element of developing process such as developer roll, is used to control the control powder element such as the powder delivery cutter of developing element surface development agent thickness, and the developer such as the carbon dust that are used to form visual image, or the like.For developing element in the developing apparatus and control powder element, it mainly is to reach mutual friction mutually by developing element such as developer roll with overstocking of control powder element such as powder delivery cutter, makes developer be covered in the surface of developing element uniformly.
Existing a kind of cartridge as shown in Figure 1, the control powder element 13 that mainly comprises carbon dust chamber 11, developer roll 12 and be used to adjust carbon dust layer thickness on the developer roll is as the powder delivery cutter.Existing a kind of powder delivery cutter as shown in Figure 2 mainly comprises metal knife rest 131, blade 132, and this blade is provided with the adhesive tape 133 of a projection away from the free end surface of knife rest one end, and this adhesive tape can contact with the developer roll surface.Because the adhesive tape on the described powder delivery cutter blade can only contact with developer roll on a surface of contact, contact abundant inadequately, therefore can not well guarantee the control powder effect of powder delivery cutter, influence the homogeneity of developer roll surface institute carbon-bearing powder layer thickness, thereby influence image display quality.
Summary of the invention
Technical problem underlying to be solved in the utility model is to provide a kind of cartridge developer roll surface institute carbon-bearing powder layer thickness powder delivery cutter more uniformly that makes.
Another technical matters to be solved in the utility model is to provide a kind of being equipped with to make the cartridge developer roll surface institute carbon-bearing powder layer thickness cartridge of powder delivery cutter more uniformly.
For solving above-mentioned technical problem underlying, the powder delivery cutter that the utility model provides comprises knife rest, blade; This blade one end is fixed on the described knife rest, on the surface of described blade away from described knife rest one end, is provided with two raised lines parallel to each other along the lateral separation of described blade, and this raised line surface is a cambered surface.
As the further scheme of the utility model powder delivery cutter, the blade face between two described raised lines is provided with the perforate of interruption.
As powder delivery cutter scheme further, described perforate be shaped as rectangle or ellipse.
For solving above-mentioned another technical matters, the cartridge that the utility model provides comprises the box body that contains a carbon dust chamber, rotatably is fixed on developer roll, powder delivery cutter on the box body; This powder delivery cutter comprises that a knife rest and an end are fixed on the blade on the knife rest, and this knife rest is fixed on the described box body, described blade away from the surface elasticity of described knife rest one end be pressed on the outer rim of described developer roll; Described blade is provided with two raised lines parallel to each other away from the surface of described knife rest one end along the lateral separation of described blade, and this raised line surface is a cambered surface.
As the further scheme of the utility model cartridge, the blade face between two described raised lines is provided with the perforate of interruption.
As cartridge scheme further, described perforate be shaped as rectangle or ellipse.
Adopt said structure, owing to be provided with two raised lines parallel to each other along the lateral separation of blade away from the surface of knife rest one end at the blade of powder delivery cutter, and the surface of raised line is a cambered surface, thereby can so that two raised lines on two surface of contact, contact with the external peripheral surface of cartridge developer roll is flexible, guaranteed the full contact of itself and developer roll.During cartridge work, when carbon dust moves to the developer roll surface, the powder delivery cutter is not on a surface of contact, but on two surface of contact, rub respectively and overstock with the external peripheral surface of developer roll, control powder, thereby make that developer roll surface institute carbon-bearing powder layer thickness is more even, further guaranteed high-quality video picture.Simultaneously, this is simple in structure, be easy to make, cost is low.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of existing a kind of cartridge.
Fig. 2 is the structural representation of existing a kind of powder delivery cutter.
Fig. 3 is the structural representation of the utility model powder delivery cutter embodiment.
Fig. 4 is the sectional view that shows developer roll and powder delivery cutter position relation among the utility model cartridge embodiment.
Fig. 5 is the structural representation of the utility model cartridge embodiment.
Embodiment
Fig. 3 is the structural representation of the utility model powder delivery cutter embodiment.The powder delivery cutter comprises knife rest 231, blade 232.Knife rest 231 is a metal support, is used for fixing on the support of the wall portion of cartridge.Blade 232 is an elastic sheet, and the one end is fixed on the knife rest 232 by modes such as welding.On the surface of blade 232 away from knife rest 231 1 ends, be provided with two raised lines parallel to each other along the lateral separation of blade 232, two ends of every raised line progressively reduce towards the surface of blade 232 respectively, until with blade 232 flush.Article two, the size of raised line, shape are identical, wherein near knife rest 232 be last raised line 2321, away from time raised line 2322 that is of knife rest 232.The surface of last raised line 2321 and following raised line 2322 is cambered surface, its cambered surface is protruding in developer roll 22, can keep Elastic Contact with developer roll 22 external peripheral surfaces, so, last raised line 2321 and following raised line 2322 can keep Elastic Contact with developer roll 22 surfaces respectively on surface of contact separately.On the blade face between last raised line 2321 and the following raised line 2322, be provided with perforate 2323.Perforate 2323 is a plurality of, is arranged in equably between raised line 2321 and the following raised line 2322 along the horizontal each interval of blade 232.Perforate 2323 be shaped as rectangle or ellipse, and its transverse axis length is greater than longitudinal extent.Like this, during the carbon dust layer thickness of powder delivery cutter 23 absorption on control developer roll 22, unnecessary carbon dust can be back in the carbon dust chamber by perforate 2323.
Fig. 4 is the sectional view that shows developer roll and powder delivery cutter position relation among the utility model cartridge embodiment.As shown in Figure 4, two raised lines on powder delivery cutter 23 blades are promptly gone up raised line 2321 and are contacted respectively with the external peripheral surface of developer roll 22 with following raised line 2322, thereby make powder delivery cutter 23 be pressed on the outer rim of developer roll 22 on two different contacts site.
Certainly, the technical scheme of the utility model powder delivery cutter is not limited to above-mentioned embodiment, according to the technical conceive of the utility model powder delivery cutter other embodiment can also be arranged, and the size of for example described two raised lines can be different, and shape can be different; Interval between the described perforate can be uneven; The shape of perforate can also be to be similar to rectangle or oval-shaped other shapes etc., and suchlike tiny conversion all drops within the protection domain of the utility model powder delivery cutter.
Fig. 5 is the structural representation of the utility model cartridge embodiment.Cartridge comprises the box body 21 that contains a carbon dust chamber, rotatably is fixed on developer roll 22, powder delivery cutter 23 on the box body.Powder delivery cutter 23 is with certain pressure and developer roll 22 Elastic Contact, thereby powder outlet quantity is controlled.The powder delivery cutter adopts the described structure of above powder delivery tool bodies embodiment, and other structures of cartridge are same as the prior art.
Claims (8)
1. powder delivery cutter comprises:
Knife rest;
Blade, an end are fixed on the described knife rest;
It is characterized in that:
On the surface of described blade away from described knife rest one end, be provided with two raised lines parallel to each other along the lateral separation of described blade, described raised line surface is a cambered surface.
2. powder delivery cutter according to claim 1 is characterized in that:
On the blade face between two described raised lines, be provided with the perforate of interruption.
3. powder delivery cutter according to claim 2 is characterized in that:
Described perforate be shaped as rectangle or ellipse.
4. according to any described powder delivery cutter of claim 1 to 3, it is characterized in that:
The end of described raised line progressively reduces towards the surface of described blade, until flushing with described blade face.
5. cartridge comprises:
Box body includes a carbon dust chamber;
Developer roll rotatably is fixed on the described box body;
The powder delivery cutter comprises that a knife rest and an end are fixed on the blade on the described knife rest, and described knife rest is fixed on the described box body, described blade away from the surface elasticity of described knife rest one end be pressed on the outer rim of described developer roll;
It is characterized in that:
Described blade is provided with two raised lines parallel to each other away from the surface of described knife rest one end along the lateral separation of described blade, and described raised line surface is a cambered surface.
6. cartridge according to claim 5 is characterized in that:
On the blade face between two described raised lines, be provided with the perforate of interruption.
7. cartridge according to claim 6 is characterized in that:
Described perforate be shaped as rectangle or ellipse.
8. according to any described cartridge of claim 5 to 7, it is characterized in that:
The end of described raised line progressively reduces towards the surface of described blade, until flushing with described blade face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205712245U CN201820086U (en) | 2010-10-21 | 2010-10-21 | Powder output knife and carbon powder box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205712245U CN201820086U (en) | 2010-10-21 | 2010-10-21 | Powder output knife and carbon powder box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201820086U true CN201820086U (en) | 2011-05-04 |
Family
ID=43918034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205712245U Expired - Fee Related CN201820086U (en) | 2010-10-21 | 2010-10-21 | Powder output knife and carbon powder box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201820086U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067892A1 (en) * | 2011-11-11 | 2013-05-16 | 珠海天威飞马打印耗材有限公司 | Scraper and process cartridge |
| CN112764335A (en) * | 2020-08-10 | 2021-05-07 | 珠海天威飞马打印耗材有限公司 | Powder box and production method thereof |
-
2010
- 2010-10-21 CN CN2010205712245U patent/CN201820086U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067892A1 (en) * | 2011-11-11 | 2013-05-16 | 珠海天威飞马打印耗材有限公司 | Scraper and process cartridge |
| CN112764335A (en) * | 2020-08-10 | 2021-05-07 | 珠海天威飞马打印耗材有限公司 | Powder box and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20181021 |